{"uid":"cap_p-4mgGdbkjPRT9Uu0uSzc","slug":"x402-payment-requirements-probe-0a1710f5","name":"x402 Payment Requirements Probe","description":"Unpaid probe of a public https URL for x402 payment requirements ($0.005 USDC). Never pays. Returns HTTP status, latency, whether 402/payment-requirements parse, networks, min price, schema flag. https only; caps ~12s, 200KB, 5 redirects. Factual only; as is, no guarantee. Not a rating or certification.","url":"https://well-012-x402-probe.rainmaker-wells.workers.dev/mcp?utm_source=zero.xyz#x402-probe#x402-probe","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_H-ioRK3BNTBq8DSxyiDw-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Probes a public HTTPS URL to detect x402 payment requirements, returning HTTP status, latency, payment networks, minimum price, and schema validity without ever making a payment.","exampleAgentPrompt":"Can you probe https://api.example.com/data to check if it has x402 payment requirements — tell me whether it returns a 402, what payment networks it accepts, and what the minimum price is, without actually paying anything?","exampleUseCases":[{"title":"Discover payment terms before integrating","prompt":"Before I integrate this API, can you probe https://inference.example.com/v1/complete and tell me if it's x402-gated, what networks it accepts, and what the minimum cost per call is?"},{"title":"Validate x402 schema compliance","prompt":"I'm building an x402 service and want to make sure my endpoint is spec-compliant — can you probe https://myapp.dev/api/premium and check whether the payment-requirements response parses correctly and passes schema validation?"},{"title":"Monitor x402 pricing across services","prompt":"I'm comparing x402-enabled APIs — can you probe https://data.provider.io/endpoint and report back the HTTP status, latency, minimum price, and which payment networks are listed?"}],"resultDescription":"Returns HTTP status code, round-trip latency, whether the URL responded with a 402 and a parseable payment-requirements header, list of accepted payment networks, minimum price, and a flag indicating schema validity. Does not attempt payment. Capped at ~12 seconds, 200KB response, and 5 redirects.","failureModes":["Non-HTTPS URLs rejected outright","Timeouts if the target URL takes longer than ~12 seconds","Response body truncated if target exceeds 200KB","Redirect loops or chains longer than 5 hops fail","Target URL may return 402 without a valid payment-requirements schema, reported as schema invalid","Network errors or DNS failures return error status with no payment data"],"whenToPreferThis":"Use this endpoint when you need to safely inspect whether a URL is x402-gated without triggering a payment, or when you want to programmatically discover payment network support and minimum pricing before deciding whether to pay. Ideal for API integration planning, x402 schema validation, and cost-comparison workflows across multiple x402-enabled services.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:32:52.639Z","isFirstParty":false,"canonicalSlug":"x402-payment-requirements-probe-c5f77a55"}